T
ECHNICAL
R
EFERENCE
M
ANUAL
Distance Laser Sensor
Page 7/43
The MRL3 (H) supports two types of operation modes:
Controlled mode
Automatic mode
The first decision to be taken is the type of operation mode that will be used to transmit the distance
measurement data. While the controlled mode provides maximum flexibility and accuracy, it is often not
suitable for integration into existing PLCs or analog environments. In such cases the automatic mode might
be preferred.
Key
controlled mode
automatic mode
(with analog output and digital outputs)
Accuracy
Maximum measurement accuracy
Accuracy depends on signal scaling
(see 8.3.5 on page 26)
Flexibility
Access to full command set
Limited
Integration
Requires protocol implementation
Wiring of AO and DO signals
Connection
Connection of up to 10 MRL3 (H)s to
a single RS-422 line.
Point-to-point connection
The following two sections describe the configuration of the MRL3 (H) for the controlled and automatic
modes.
2.1 Connection
To be able to configure the MRL3 (H), it must be powered and connected to a PC. Figure 2 shows the
necessary connections. On the PC, any terminal program can be used to communicate with the module.
Additionally, a configuration utility is available on the web page
www.metrologyresource.com
.
Figure 2: Connection for MRL3(H) Configuration
